package labox.innovation.gameserver.datatables;

import gnu.trove.TIntIntHashMap;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import labox.innovation.config.Config;
import labox.innovation.db.core.L2DatabaseFactory;
import labox.innovation.gameserver.model.L2Skill;

public class SkillSpellbookTable {

	private static final Logger _log = LoggerFactory.getLogger(SkillTreeTable.class.getName());

	private static TIntIntHashMap _skillSpellbooks;

	public static SkillSpellbookTable getInstance() {
		return SingletonHolder._instance;
	}

	private SkillSpellbookTable() {

		_skillSpellbooks = new TIntIntHashMap();
		Connection con = null;

		try {
			con = L2DatabaseFactory.getInstance().getConnection();
			PreparedStatement statement = con.prepareStatement("SELECT skill_id, item_id FROM skill_spellbooks");
			ResultSet spbooks = statement.executeQuery();

			while (spbooks.next())
				_skillSpellbooks.put(spbooks.getInt("skill_id"), spbooks.getInt("item_id"));

			spbooks.close();
			statement.close();

			_log.info("SkillSpellbookTable: Loaded " + _skillSpellbooks.size() + " Spellbooks.");
		} catch (Exception e) {
			_log.error("Error while loading spellbook data: ", e);
		} finally {
			try {
				con.close();
			} catch (Exception e) {
			}
		}
	}

	public int getBookForSkill(int skillId, int level) {
		if (skillId == L2Skill.SKILL_DIVINE_INSPIRATION && level != -1) {
			switch (level) {
			case 1:
				return 8618; // Ancient Book - Divine Inspiration (Modern Language Version)
			case 2:
				return 8619; // Ancient Book - Divine Inspiration (Original Language Version)
			case 3:
				return 8620; // Ancient Book - Divine Inspiration (Manuscript)
			case 4:
				return 8621; // Ancient Book - Divine Inspiration (Original Version)
			default:
				return -1;
			}
		}

		if (!_skillSpellbooks.containsKey(skillId))
			return -1;

		return _skillSpellbooks.get(skillId);
	}

	public int getBookForSkill(L2Skill skill) {
		return getBookForSkill(skill.getId(), -1);
	}

	public int getBookForSkill(L2Skill skill, int level) {
		return getBookForSkill(skill.getId(), level);
	}

	@SuppressWarnings("synthetic-access")
	private static class SingletonHolder {
		protected static final SkillSpellbookTable _instance = new SkillSpellbookTable();
	}
}
